Dow Jones industrial average up 33.67 points, closing at 3,798.17 . . . N.Y.S.E.'s composite index up 1.43 to 254.05 . . . NASDAQ stock-market composite index gained 2.46 to 724.62 . . . American Stock Exchange rose 1.93 to 439.62 . . . Gold lost $0.20 to $383.20 on the Commodity Exchange in New York . . . The 30-year Treasury bond closed with a yield of 7.40 percent, up from 7.39 late Friday.